1：SharePoint项目刚好在一个solution folder（VS中的解决方案文件夹）里面，新建list definition（列表定义）时找不到自定义的内容类型

步骤重现，先定义一个content type，用vs2010 deploy上去。在新建list definition，选择模版list definition from content type，进入下一步，结果找不到我刚才的自定义content type。郁闷了几个小时，找遍微软的帮助。最终解决方案是，把project拖到solution根目录下就可以了。由于我的project是在一个 solution folder下面。这真是管用的奇淫技巧，微软太忽悠我们了

2： 部署内容类型(Content Type)的问题

1)   Error occurred in deployment step Activate Features” The content type with Id ‘xx’ defined in feature ‘yy’ was found in the current site collection or in a subsite.

解决方案：http://blog.hagenberg-software.at/2010/06/visual-studio-2010-deploying-content-types-and-site-columns/?replytocom=2703#respond

 把deployment步骤改为不激活，手工激活

2)   Error occurred in deployment step 'Activate Features': The field with Id {a6a841d7-4067-4519-b794-e25ac438e9cf} defined in feature {a6192d76-512f-48de-9284-251b49902345} was found in the current site collection or in a subsite.

解决方案：http://blogs.msdn.com/b/chandru/archive/2010/09/06/visual-studio-2010-f5-solution-deployment.aspx

 步骤如下，主要是杀掉vssphost4进程，强迫其开启一个新的

1. F5 (Deploy the solution)

2. Shift +F5 (Retract the solution)

3. Again F5.  This time it will fail.

4. Open the task manager and kill VSSPHost4 process.

5. Now F5 and the solution gets deployed successfully.